When investigating in Namie Town this April, we encountered excrement of Japanese Macaca and Wild Boar. Thus, I compared them with mine. As a result these excrement contain highly radioactive caesium except for mine even after 6 years of disaster. I’m taking ingredient from a supermarket in Tokyo and going out to lunch. On the other hand, these wild animals are living in the contaminated mountain area and have been eating contaminated vegetable and fruit.

The excrement of wild boar contains a lot of shining dot. We believe these are contaminated soil because they dig ground all over the place and eat angleworms and plant roots. The excrement of Japanese Macaque doesn’t contain so many shining dot because they eat new leaves and fruit basically on the tree. Radioactive caesium goes into new tissues in plants. In spring, plant and flowers put forth buds and Japanese macaque earnestly eat these new leaves. That’s why the measurement of Japanese macaque shows high level radiation. In fact, when I collected it, it was colored green.

Before collecting Japanese macaque excrement at Obori in Namie Town (Apr. 2017)

(Masamichi Kagaya)

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